87 static int self_check_not_bad(const struct ubi_device *ubi, int pnum);
88 static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum);
89 static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,
91 static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum);
92 static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,
94 static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,
119 int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,  in ubi_io_read()  argument
126 	dbg_io("read %d bytes from PEB %d:%d", len, pnum, offset);  in ubi_io_read()
128 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_read()
132 	err = self_check_not_bad(ubi, pnum);  in ubi_io_read()
158 	addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_io_read()
174 				pnum);  in ubi_io_read()
181 				 err, errstr, len, pnum, offset, read);  in ubi_io_read()
187 			err, errstr, len, pnum, offset, read);  in ubi_io_read()
228 int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,  in ubi_io_write()  argument
235 	dbg_io("write %d bytes to PEB %d:%d", len, pnum, offset);  in ubi_io_write()
237 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_write()
247 	err = self_check_not_bad(ubi, pnum);  in ubi_io_write()
252 	err = ubi_self_check_all_ff(ubi, pnum, offset, len);  in ubi_io_write()
261 		err = self_check_peb_ec_hdr(ubi, pnum);  in ubi_io_write()
264 		err = self_check_peb_vid_hdr(ubi, pnum);  in ubi_io_write()
271 			len, pnum, offset);  in ubi_io_write()
276 	addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_io_write()
280 			err, len, pnum, offset, written);  in ubi_io_write()
282 		ubi_dump_flash(ubi, pnum, offset, len);  in ubi_io_write()
287 		err = self_check_write(ubi, buf, pnum, offset, len);  in ubi_io_write()
298 			err = ubi_self_check_all_ff(ubi, pnum, offset, len);  in ubi_io_write()
325 static int do_sync_erase(struct ubi_device *ubi, int pnum)  in do_sync_erase()  argument
331 	dbg_io("erase PEB %d", pnum);  in do_sync_erase()
332 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in do_sync_erase()
344 	ei.addr     = (loff_t)pnum * ubi->peb_size;  in do_sync_erase()
353 				 err, pnum);  in do_sync_erase()
357 		ubi_err(ubi, "cannot erase PEB %d, error %d", pnum, err);  in do_sync_erase()
365 		ubi_err(ubi, "interrupted PEB %d erasure", pnum);  in do_sync_erase()
372 				 pnum);  in do_sync_erase()
376 		ubi_err(ubi, "cannot erase PEB %d", pnum);  in do_sync_erase()
381 	err = ubi_self_check_all_ff(ubi, pnum, 0, ubi->peb_size);  in do_sync_erase()
386 		ubi_err(ubi, "cannot erase PEB %d (emulated)", pnum);  in do_sync_erase()
405 static int torture_peb(struct ubi_device *ubi, int pnum)  in torture_peb()  argument
409 	ubi_msg(ubi, "run torture test for PEB %d", pnum);  in torture_peb()
415 		err = do_sync_erase(ubi, pnum);  in torture_peb()
420 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
427 				pnum);  in torture_peb()
434 		err = ubi_io_write(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
439 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
447 				patterns[i], pnum);  in torture_peb()
454 	ubi_msg(ubi, "PEB %d passed torture test, do not mark it as bad", pnum);  in torture_peb()
465 			pnum);  in torture_peb()
491 static int nor_erase_prepare(struct ubi_device *ubi, int pnum)  in nor_erase_prepare()  argument
515 	addr = (loff_t)pnum * ubi->peb_size;  in nor_erase_prepare()
516 	err = ubi_io_read_ec_hdr(ubi, pnum, &ec_hdr, 0);  in nor_erase_prepare()
524 	err = ubi_io_read_vid_hdr(ubi, pnum, &vid_hdr, 0);  in nor_erase_prepare()
540 	ubi_err(ubi, "cannot invalidate PEB %d, write returned %d", pnum, err);  in nor_erase_prepare()
541 	ubi_dump_flash(ubi, pnum, 0, ubi->peb_size);  in nor_erase_prepare()
561 int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)  in ubi_io_sync_erase()  argument
565 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_sync_erase()
567 	err = self_check_not_bad(ubi, pnum);  in ubi_io_sync_erase()
577 		err = nor_erase_prepare(ubi, pnum);  in ubi_io_sync_erase()
583 		ret = torture_peb(ubi, pnum);  in ubi_io_sync_erase()
588 	err = do_sync_erase(ubi, pnum);  in ubi_io_sync_erase()
603 int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_is_bad()  argument
607 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_is_bad()
612 		ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_is_bad()
615 				ret, pnum);  in ubi_io_is_bad()
617 			dbg_io("PEB %d is bad", pnum);  in ubi_io_is_bad()
632 int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_mark_bad()  argument
637 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_mark_bad()
647 	err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_mark_bad()
649 		ubi_err(ubi, "cannot mark PEB %d bad, error %d", pnum, err);  in ubi_io_mark_bad()
725 int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_ec_hdr()  argument
731 	dbg_io("read EC header from PEB %d", pnum);  in ubi_io_read_ec_hdr()
732 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_read_ec_hdr()
734 	read_err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in ubi_io_read_ec_hdr()
764 					 pnum);  in ubi_io_read_ec_hdr()
766 				pnum);  in ubi_io_read_ec_hdr()
779 				 pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
783 			pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
793 				 pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
797 			pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
808 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_ec_hdr()
834 int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_ec_hdr()  argument
840 	dbg_io("write EC header to PEB %d", pnum);  in ubi_io_write_ec_hdr()
841 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_ec_hdr()
851 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in ubi_io_write_ec_hdr()
858 	err = ubi_io_write(ubi, ec_hdr, pnum, 0, ubi->ec_hdr_alsize);  in ubi_io_write_ec_hdr()
998 int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_vid_hdr()  argument
1005 	dbg_io("read VID header from PEB %d", pnum);  in ubi_io_read_vid_hdr()
1006 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_read_vid_hdr()
1009 	read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_read_vid_hdr()
1022 					 pnum);  in ubi_io_read_vid_hdr()
1024 				pnum);  in ubi_io_read_vid_hdr()
1033 				 pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1037 			pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1047 				 pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1051 			pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1060 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_vid_hdr()
1082 int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_vid_hdr()  argument
1089 	dbg_io("write VID header to PEB %d", pnum);  in ubi_io_write_vid_hdr()
1090 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_vid_hdr()
1092 	err = self_check_peb_ec_hdr(ubi, pnum);  in ubi_io_write_vid_hdr()
1101 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in ubi_io_write_vid_hdr()
1109 	err = ubi_io_write(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_write_vid_hdr()
1122 static int self_check_not_bad(const struct ubi_device *ubi, int pnum)  in self_check_not_bad()  argument
1129 	err = ubi_io_is_bad(ubi, pnum);  in self_check_not_bad()
1133 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_not_bad()
1147 static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,  in self_check_ec_hdr()  argument
1165 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_ec_hdr()
1185 static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_ec_hdr()  argument
1198 	err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in self_check_peb_ec_hdr()
1207 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_ec_hdr()
1214 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in self_check_peb_ec_hdr()
1230 static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,  in self_check_vid_hdr()  argument
1242 			magic, pnum, UBI_VID_HDR_MAGIC);  in self_check_vid_hdr()
1248 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1255 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1270 static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_vid_hdr()  argument
1285 	err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in self_check_peb_vid_hdr()
1294 			pnum, crc, hdr_crc);  in self_check_peb_vid_hdr()
1295 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_vid_hdr()
1302 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in self_check_peb_vid_hdr()
1321 static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,  in self_check_write()  argument
1327 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in self_check_write()
1353 			pnum, offset, len);  in self_check_write()
1387 int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)  in ubi_self_check_all_ff()  argument
1392 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_self_check_all_ff()
1406 			err, len, pnum, offset, read);  in ubi_self_check_all_ff()
1413 			pnum, offset, len);  in ubi_self_check_all_ff()
1421 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in ubi_self_check_all_ff()